First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica
Tintinnid ciliates are an important link in marine food webs as they feed on phytoplankton and bacteria while providing nutrients to higher trophic levels. Tintinnids are known to agglutinate mineral particles or dead biogenic material such as diatom frustules to their shell-like housing (lorica), h...
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Online Access: | http://hdl.handle.net/2440/117099 https://doi.org/10.1093/plankt/fbx036 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/117099 2023-12-24T10:10:55+01:00 First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica Armbrecht, L.H. Eriksen, R. Leventer, A. Armand, L.K. 2017 http://hdl.handle.net/2440/117099 https://doi.org/10.1093/plankt/fbx036 en eng Oxford University Press Journal of Plankton Research, 2017; 39(5):795-802 0142-7873 1464-3774 http://hdl.handle.net/2440/117099 doi:10.1093/plankt/fbx036 Armbrecht, L.H. [0000-0002-1213-1257] © The Author 2017. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com http://dx.doi.org/10.1093/plankt/fbx036 Diatom tintinnid Fragilariopsis curta Fragilariopsis cylindrus Fragilariopsis pseudonana Fragilariopsis rhombica Laackmanniella naviculaefera Codonellopsis gaussi sea-ice Antarctica Journal article 2017 ftunivadelaidedl https://doi.org/10.1093/plankt/fbx036 2023-11-27T23:18:47Z Tintinnid ciliates are an important link in marine food webs as they feed on phytoplankton and bacteria while providing nutrients to higher trophic levels. Tintinnids are known to agglutinate mineral particles or dead biogenic material such as diatom frustules to their shell-like housing (lorica), however, reasons for this agglutination remain questioned. We report on our observation of agglomeration of the living diatoms Fragilariopsis curta, F. cylindrus, F. pseudonana and F. rhombica to loricae of the Antarctic tintinnid ciliates Laackmanniella naviculaefera and Codonellopsis gaussi. These unusual associations between living diatoms and tintinnids were exclusively observed south of 63.59°S. We discuss the significance of our new finding and generate hypotheses to be tested by future research. It remains unclear where these living diatom–tintinnid associations are initially formed (in or near sea ice or also further north when abundances of L. naviculaefera, C. gaussi, F. curta, F. cylindrus, F. pseudonana and F. rhombica happen to be relatively high); who the beneficiary is in this association; what the exact benefits are; and how they might influence the Southern Ocean carbon cycle. Nevertheless, our observation provides a key step forward towards illuminating the largely unknown ecology of two Southern Ocean-endemic tintinnid species. Linda H. Armbrecht, Ruth Eriksen, Amy Leventer and Leanne K. Armand Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Sea ice Southern Ocean The University of Adelaide: Digital Library Antarctic Southern Ocean The Antarctic East Antarctica Journal of Plankton Research 39 5 795 802 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
topic |
Diatom tintinnid Fragilariopsis curta Fragilariopsis cylindrus Fragilariopsis pseudonana Fragilariopsis rhombica Laackmanniella naviculaefera Codonellopsis gaussi sea-ice Antarctica |
spellingShingle |
Diatom tintinnid Fragilariopsis curta Fragilariopsis cylindrus Fragilariopsis pseudonana Fragilariopsis rhombica Laackmanniella naviculaefera Codonellopsis gaussi sea-ice Antarctica Armbrecht, L.H. Eriksen, R. Leventer, A. Armand, L.K. First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica |
topic_facet |
Diatom tintinnid Fragilariopsis curta Fragilariopsis cylindrus Fragilariopsis pseudonana Fragilariopsis rhombica Laackmanniella naviculaefera Codonellopsis gaussi sea-ice Antarctica |
description |
Tintinnid ciliates are an important link in marine food webs as they feed on phytoplankton and bacteria while providing nutrients to higher trophic levels. Tintinnids are known to agglutinate mineral particles or dead biogenic material such as diatom frustules to their shell-like housing (lorica), however, reasons for this agglutination remain questioned. We report on our observation of agglomeration of the living diatoms Fragilariopsis curta, F. cylindrus, F. pseudonana and F. rhombica to loricae of the Antarctic tintinnid ciliates Laackmanniella naviculaefera and Codonellopsis gaussi. These unusual associations between living diatoms and tintinnids were exclusively observed south of 63.59°S. We discuss the significance of our new finding and generate hypotheses to be tested by future research. It remains unclear where these living diatom–tintinnid associations are initially formed (in or near sea ice or also further north when abundances of L. naviculaefera, C. gaussi, F. curta, F. cylindrus, F. pseudonana and F. rhombica happen to be relatively high); who the beneficiary is in this association; what the exact benefits are; and how they might influence the Southern Ocean carbon cycle. Nevertheless, our observation provides a key step forward towards illuminating the largely unknown ecology of two Southern Ocean-endemic tintinnid species. Linda H. Armbrecht, Ruth Eriksen, Amy Leventer and Leanne K. Armand |
format |
Article in Journal/Newspaper |
author |
Armbrecht, L.H. Eriksen, R. Leventer, A. Armand, L.K. |
author_facet |
Armbrecht, L.H. Eriksen, R. Leventer, A. Armand, L.K. |
author_sort |
Armbrecht, L.H. |
title |
First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica |
title_short |
First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica |
title_full |
First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica |
title_fullStr |
First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica |
title_full_unstemmed |
First observations of living sea-ice diatom agglomeration to tintinnid loricae in East Antarctica |
title_sort |
first observations of living sea-ice diatom agglomeration to tintinnid loricae in east antarctica |
publisher |
Oxford University Press |
publishDate |
2017 |
url |
http://hdl.handle.net/2440/117099 https://doi.org/10.1093/plankt/fbx036 |
geographic |
Antarctic Southern Ocean The Antarctic East Antarctica |
geographic_facet |
Antarctic Southern Ocean The Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Sea ice Southern Ocean |
op_source |
http://dx.doi.org/10.1093/plankt/fbx036 |
op_relation |
Journal of Plankton Research, 2017; 39(5):795-802 0142-7873 1464-3774 http://hdl.handle.net/2440/117099 doi:10.1093/plankt/fbx036 Armbrecht, L.H. [0000-0002-1213-1257] |
op_rights |
© The Author 2017. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com |
op_doi |
https://doi.org/10.1093/plankt/fbx036 |
container_title |
Journal of Plankton Research |
container_volume |
39 |
container_issue |
5 |
container_start_page |
795 |
op_container_end_page |
802 |
_version_ |
1786158490885029888 |